Cobra USA COB-6291RB 4-1/2" Gen 2 Neighbor Hater Slip-On Mufflers Black w/Black End Caps for Touring 17-UpFeatures & Benefits: * Hard to believe but we've made the Neighbor Haters sound even better. The GEN2 NH starts with a 4. 5 inch round body. * These have a machined aluminum black outer tip with dual grooves. The chrome version uses a chromed inner tip and the black bodies use a gloss black inner tip. * Those inner tips echo the original Neighbor Hater form creating a strong visual resemblance and sonic similarity with the original versions. Tech